Private cloud enclaves are possible to construct today.
They require an expertise to know what you're doing and that you've done it correctly.
But even when you've done it correctly, non-experts won't necessarily realize the alchemical properties you've just created.
Ideally we'd move to a world where creating and verifying a private cloud enclave is captured in a repeatable playbook.
Easier for non-experts to reliably execute on, and easier for non-experts to verify.